<aside class="col-sm-3 col-md-2 col-lg-2 sidebar">
    <ul class="nav nav-sidebar">
        <li class="active"><a href="/index">Security样例</a></li>
    </ul>
    <ul class="nav nav-sidebar">
        <li><a href="/user/index">用户</a></li>
        <li><a href="/role/index">角色</a></li>
        <li><a href="/permission/index">权限</a></li>
    </ul>
</aside>